I assume she is white and she and you both want for her to experience sex with a black man or black men. Would this be her first black man? Is she really nervous about it (most women would be)? I think you should talk through all the details and yes, I agree picking the right man is so important. Great sex is not just as simple as putting any black penis into her and watching the orgasms begin. It's a process and if you love her you need to be patient and be part of the process. Give her support and let her know absolutely that you love her and this other man won't make you stop loving her. Watch some good IR movies with her and see what kind of situations she reacts to and both of you can discover what she is most likely going to respond to when the real black man is on top of her. See if she likes the idea of him forcing her, humiliating her, talking racist during sex (N word, etc.), being dominant to her, risking pregnancy, etc. Does she like men with very dark skin? Does she really like for him to have a very large penis (not all women truly want it to be that big)? Does she want him to wear a condom or is she really set on him ejaculating inside her? Should she find a lover that is already in a relationship (so he's not looking for romance and true love and everyone is aware of what this is about)? There are so many things to talk about and consider, so please have this conversation with her. I think you will both enjoy it and it will provide clarity and confidence for both of you as you go forward....Best of luck!